PMID- 18617057 OWN - NLM STAT- MEDLINE DCOM- 20080730 LR - 20190816 IS - 1873-4456 (Electronic) IS - 0165-4608 (Linking) VI - 184 IP - 2 DP - 2008 Jul 15 TI - Analysis of gene rearrangements using a fluorescence in situ hybridization method in Mexican patients with acute lymphoblastic leukemia: experience at a single institution. PG - 94-8 LID - 10.1016/j.cancergencyto.2008.04.003 [doi] AB - We evaluated the prevalence of BCR/ABL, MLL, and ETV6/RUNX1 rearrangements as well as CDKN2A (alias p16) deletion in a group of Mexican children with acute lymphoblastic leukemia (ALL) to determine whether the changes coexist, and to compare the incidences found with other reports in the literature. To increase the detection of these abnormalities, we combined conventional cytogenetics and fluorescence in situ hybridization (FISH) analysis. Bone marrow samples were obtained from 59 consecutive children with ALL. FISH detected a total of 63 abnormalities with the selected probes, 34 of which were related to the conventional cytogenetic results. The most common abnormality was the p16 deletion (22.8%), followed by MLL and ETV6/RUNX1 rearrangements (8.7%), and the BCR/ABL fusion was the least frequent (2.7%). The coexistence of two recurrent abnormalities with specific prognostic significance in the same patient was not found. A lesser proportion of the p16 deletion in T-ALL patients was observed, probably related to the low prevalence of this subtype in our population. In addition, we confirmed the low frequency of the ETV6/RUNX1 fusion observed in Hispanics. Due to the different prevalence of these abnormalities in the Mexican population, similar studies should be conducted analyzing new rearrangements, to improve the adequate classification of the abnormalities and the stratification in prognostic groups. FAU - Perez-Vera, Patricia AU - Perez-Vera P AD - Department of Research in Human Genetics, Instituto Nacional de Pediatria, Insurgentes Sur 3700-C, Col. Insurgentes Cuicuilco, Mexico City DF 04530, Mexico. pperezvera@yahoo.com FAU - Salas, Consuelo AU - Salas C FAU - Montero-Ruiz, Oreth AU - Montero-Ruiz O FAU - Frias, Sara AU - Frias S FAU - Dehesa, Gloria AU - Dehesa G FAU - Jarquin, Berenice AU - Jarquin B FAU - Rivera-Luna, Roberto AU - Rivera-Luna R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 RN - 0 (Core Binding Factor Alpha 2 Subunit) RN - 0 (KMT2A protein, human) RN - 0 (Oncogene Proteins, Fusion) RN - 0 (TEL-AML1 fusion protein) RN - 149025-06-9 (Myeloid-Lymphoid Leukemia Protein) RN - EC 2.1.1.43 (Histone-Lysine N-Methyltransferase) SB - IM MH - Child MH - Child, Preschool MH - *Chromosome Aberrations MH - Chromosomes, Human, Pair 1 MH - Chromosomes, Human, Pair 11 MH - Chromosomes, Human, Pair 19 MH - Chromosomes, Human, Pair 22 MH - Chromosomes, Human, Pair 9 MH - Core Binding Factor Alpha 2 Subunit/genetics MH - Female MH - Gene Frequency MH - Genes, abl MH - Genes, p16 MH - Histone-Lysine N-Methyltransferase MH - Humans MH - In Situ Hybridization, Fluorescence/*methods MH - Infant MH - Infant, Newborn MH - Male MH - Mexico MH - Myeloid-Lymphoid Leukemia Protein/genetics MH - Oncogene Proteins, Fusion/genetics MH - Precursor Cell Lymphoblastic Leukemia-Lymphoma/*genetics EDAT- 2008/07/12 09:00 MHDA- 2008/07/31 09:00 CRDT- 2008/07/12 09:00 PHST- 2008/02/12 00:00 [received] PHST- 2008/03/27 00:00 [revised] PHST- 2008/04/02 00:00 [accepted] PHST- 2008/07/12 09:00 [pubmed] PHST- 2008/07/31 09:00 [medline] PHST- 2008/07/12 09:00 [entrez] AID - S0165-4608(08)00231-8 [pii] AID - 10.1016/j.cancergencyto.2008.04.003 [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2008 Jul 15;184(2):94-8. doi: 10.1016/j.cancergencyto.2008.04.003.